27127688856 has 32 divisors (see below), whose sum is σ = 67857365760. Its totient is φ = 9037477152.

The previous prime is 27127688849. The next prime is 27127688869. The reversal of 27127688856 is 65888672172.

It is a self number, because there is not a number n which added to its sum of digits gives 27127688856.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274180 + ... + 359763.

It is an arithmetic number, because the mean of its divisors is an integer number (2120542680).

Almost surely, 2^27127688856 is an apocalyptic number.

It is an amenable number.

27127688856 is an abundant number, since it is smaller than the sum of its proper divisors (40729676904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27127688856 is a wasteful number, since it uses less digits than its factorization.

27127688856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635735 (or 635731 counting only the distinct ones).

The product of its digits is 18063360, while the sum is 60.

The spelling of 27127688856 in words is "twenty-seven billion, one hundred twenty-seven million, six hundred eighty-eight thousand, eight hundred fifty-six".